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Sedbober [7]
3 years ago
9

Show all steps necessary to verify the trigonometric identity:

Mathematics
2 answers:
Norma-Jean [14]3 years ago
7 0

All steps are attached in the pic below

vekshin13 years ago
4 0

Answer:

1+tan2x

Tan2x

=      <u> sec²x  </u>        = <u>Sec²x  </u>       = cosec²x

    Tan²x            ( Sec²x/cosec²x)

Step-by-step explanation:

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A math class's mean test score is 88.4. The standard deviation is 4.0. If Kimmie scored 85.9, what is her z-score
kvv77 [185]

The z-score of Kimmie is -0.625

<h3>Calculating z-score</h3>

The formula for calculating the z-score is expressed as;

z = x-η/s

where

η is the mean

s is the standard deviation

x is the Kimmie score

Substitute the given parameter

z = 85.9-88.4/4.0

z = -2.5/4.0

z = -0.625

Hence the z-score of Kimmie is -0.625

Learn more on z-score here: brainly.com/question/25638875

#SPJ1

5 0
2 years ago
Me. Mesa and Ms. Felipe are going to race each other to see who is going to pay for lunch. Ms. Felipe decides to give Ms. Messa
tia_tia [17]

Answer:

1. y=7x

2. y=9x

Step-by-step explanation:

7 0
3 years ago
What is 3.1 × 10 1 in standard form
myrzilka [38]

Answer:

3.45 x 10^5

Step-by-step explanation:

 

1.3×100=1.3

7 0
3 years ago
Read 2 more answers
Yuri purchased 8 trees to have planted at his house. The store charged a delivery fee of $5 per tree.
cestrela7 [59]

Answer:

$16.

Step-by-step explanation:

Let t represent the cost of each tree.

We have been given that Yuri purchased 8 trees to have planted at his house. So the cost of 8 trees will be 8t.

We are also told that the store charged a delivery fee of $5 per tree. So the delivery charges of 8 trees will be 8\times \$5=\$40

The total cost of purchasing 8 trees will be 8t+40.  

Since the total cost of the trees including the delivery was $168, so we can get an equation as:

8t+40=168

8t+40-40=168-40

8t=128

Upon dividing both sides of our given equation by 8, we will get:

\frac{8t}{8}=\frac{128}{8}  

t=16  

Therefore, the cost of each tree is $16.

5 0
3 years ago
Jeanette really loves apple-flavored Fruity Tooty candies, but there always seems to be a lot of cherry-flavored candies in each
shusha [124]

Answer:

a

Step-by-step explanation:

im gonna go with a. hope its right! have an amazing day!

8 0
3 years ago
Read 2 more answers
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